That is a good source...may I plug Landmark Booksellers here in Franklin too while we’re at it?
http://www.landmarkbooksellers.com/
I have to watch myself spending like a drunken sailor in there...
Some of the parks have decent bookstores and rosters too actually.
I could start my own library with the books I bought in Gettysburg. I'm planning on seeing the Carter house in Franklin one of these years.